Tools/LC Tank Calculator

LC Tank Calculator

Calculate resonant frequency, impedance, and Q factor

LC Tank Parameters

LC

Results

Resonant Frequency

5.0329 MHz

Period: 198.69 ns

Characteristic Z

316.23 Ω

XL at resonance

316.23 Ω

XC at resonance

316.23 Ω

ω₀

31.62 Mrad/s

Bandwidth (-3dB)

0.1007 MHz

f₁ (lower)

4.9826 MHz

f₂ (upper)

5.0833 MHz

Parallel R

15.81

LC Tank Formulas

Resonant Frequency

f₀ = 1 / (2π√LC)

Characteristic Impedance

Z₀ = √(L/C)

Quality Factor

Q = f₀ / Δf = Z₀ / R_series = R_parallel / Z₀

At resonance, XL = XC, and the parallel LC tank presents maximum impedance (Rp = Q × Z₀). Higher Q means narrower bandwidth and sharper selectivity.

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